9868811 has 4 divisors (see below), whose sum is σ = 9966624. Its totient is φ = 9771000.

The previous prime is 9868799. The next prime is 9868813. The reversal of 9868811 is 1188689.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9868811 - 2²² = 5674507 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9868813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48755 + ... + 48956.

It is an arithmetic number, because the mean of its divisors is an integer number (2491656).

Almost surely, 2^9868811 is an apocalyptic number.

9868811 is a deficient number, since it is larger than the sum of its proper divisors (97813).

9868811 is a wasteful number, since it uses less digits than its factorization.

9868811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97812.

The product of its digits is 27648, while the sum is 41.

The square root of 9868811 is about 3141.4663773467. The cubic root of 9868811 is about 214.4971917122.

The spelling of 9868811 in words is "nine million, eight hundred sixty-eight thousand, eight hundred eleven".